Iowa Legislative Senate district boundaries, enacted April 19, 2011, effective beginning with the elections in 2012 for the 85th General Assembly. The districts will remain in effect for the 85th-89th General Assemblies, 2013-2022. Created by the Legislative Services Agency using Code of Iowa Chapter 41, using 2010 Census geographies and populations. For a comprehensive overview of Iowa's redistricting process, see the "Legislative Guide to Redistricting in Iowa": <a href="https://www.legis.iowa.gov/DOCS/Central/Guides/redist.pdf">https://www.legis.iowa.gov/DOCS/Central/Guides/redist.pdf</a>.